sounds cheap to me but if you went alone you would get all the profits, there wont be much left with 2 of you, maybe worth a deal where someone works there taking a wage no matter what and then 50 50 on profit as an mot tester will be 10 p/h minimum so if you got qualified and get a chick in the office you are ready to work and can then look into extra people if there work is therein repairs

is there a minimum of an hour per mot?if there is hes already got over a 40 hr week in his books, so sounds like it coudl be beig enough for 2 testers minimum (are there wage issue for people working there? someone on 40k or anything? and you are taking them on too?)